Highly sensitive direct simultaneous determination of zinc(II), cadmium(II), lead(II), and copper(II) based on in-situ-bismuth and mercury thin-film plated screen-printed carbon electrode

Yildiz C., Bayraktepe D., YAZAN Z.

Monatshefte fur Chemie, cilt.152, sa.12, ss.1527-1537, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 152 Sayı: 12
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s00706-021-02865-w
  • Dergi Adı: Monatshefte fur Chemie
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core
  • Sayfa Sayıları: ss.1527-1537
  • Anahtar Kelimeler: Heavy metals, Stripping voltammetry, Screen printed electrode, Bismuth film, Mercury film, ANODIC-STRIPPING VOLTAMMETRY, SIMULTANEOUS ELECTROCHEMICAL DETECTION, HEAVY-METALS, SQUARE-WAVE, TRACE, SAMPLES, CD(II), SENSORS, PB(II), POTENTIALITIES
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2021, Springer-Verlag GmbH Austria, part of Springer Nature.Thin-film disposable screen-printed electrodes modified in situ with bismuth and mercury coatings to enhance the simultaneous sensitivities and the limits of detection of cadmium(II), lead(II), copper(II), and zinc(II) were prepared using anodic stripping voltammetry. Whether the films coated were properly adhered to the surface were checked by energy-dispersive X-ray spectroscopy, electrochemical impedance spectroscopy, and cyclic voltammetry. The optimum conditions for the best performance of the sensor were investigated. The modification with Bi/Hg film electrode exhibited good analytical performance, with excellent repeatability (RSD < 4.0%), reproducibility (RSD < 4.0%), and reasonable interferences by various inorganic species. Bi/Hg–SPC electrode also offers low detection limits for Zn(II), Cd(II), Pb(II), and Cu(II), i.e., 0.97 ppb, 0.16 ppb, 0.082 ppb, and 0.64 ppb, respectively. The developed method was applied to a certified reference water sample and a surface water sample taken from the environment by standard addition method and the results are satisfactory. Analytical results obtained with the sensor are comparable to those obtained by the inductively coupled plasma mass spectrometry. Graphical abstract: [Figure not available: see fulltext.].